John d



(No Model.) J. D. MILBURN & R. G. LATTING, Jr.

MAT FOR HYDRAULIC OIL-PRESSES.

No. 279,414. Patented June 12,1883.

N. rains PhukrLhhcgnphur. Washington, 0. c.

UNITED STATES PATENT OFFICE.

JOHN D. llIILBIIRN AND RICHARD G. LATTING, J R. OF MEMPHIS, TENNESSEE, ASSIG-NORS TO MILBURN GIN AND MACHINE COMPANY, OF SAME PLACE.

MAT FOR HYDRAULIC OlL-PRESSES.

SPECIFICATION forming part of Letters Patent No. 279,414, dated June 12, 1883.

Application filed May 19, 1883. (No model.)

To 60% whom, it may concern.-

Be it known that we, JOHN D. MILBURN and RICHARD G. LATTING, J12, citizens of the United States, residing at Memphis, Tennessee,

have invented new and useful Improvements in Mats for Hydraulic Oil-Presses, of which the following is a specification.

Our invention relates to mats for hydraulic oil-press'es; and the novelty consists in the con- Io struction, arrangement, and adaptation of parts, as will be more fully hereinafter set forth, and specifically pointed out in the claims.

The invention is especially adapted for use upon that class of hydraulic presses which are I 5 employed for extracting or expressing oil from cotton-seed.

The object of the invention may in general be said to be to produce a mat which shall be simple and inexpensive of manufacture and efficient in service; and it consists, essentially, in the construction fully illustrated in the accompanying drawings, which form a p art of this specification, and in which- Figure 1 is a perspective view of our inven- 2 5 tion, and Fig. 2 a detail.

Heretofore mats have been, made of leather and hair, of cast-iron, and of cast-brass, the mats being adapted for service one to each box; but these mats have been expensive, for

the reason that they were not durable, and also for the reason that they lacked capacity, bein used one to the box. I

In our invention we employ plates of wrought metal, hinged together soas to present two 3 5 face sides, each face being provided with a border of leather, riveted to the plates near their edges. This border, upon two ends, is made in a single piece of leather to form a hinge, and to the outer surface of this hinge is secured a strap handle. These leather borders serve efficientlyto prevent the metal parts from tearing the bags, to hold the meal. in position when under pressure, and to insure as complete a pressure 011 the edges of the bag or 4 5 cake as at intermediate points.

7 Referring to the drawings, in which similar letters of reference indicate like parts in both the figures, A designates the wrought-metal plates, narroweuat one end than at the other,

having secured upon one side of each a thick leather border, B. This border on the sides and the inner ends is a narrow strip of leather of uniform thickness, and is secured to the plates by metal rivets 1), arranged closely together. two facing-plates is made of a single piece of leather, 0, of sufficient width to form a flexible hinge, and to the outer or rear part of this hinge is by rivets secured the strap of leather (1, which forms the handle by which the mats are removed from the boxes in the press.

In practice we find that this form and construction of mat allows us to extract a larger percentage of oil, that the seed after the oil is extracted is left in better shape and condition 6 5 for the market, that it is less liable to get out of order and more durable, and that it is easy to handle.

An important advantage is that after the seed has been placed in the chambers between thetwo plates-say sufficient sothat the leather edges will not come entirely together, but not enough so that the seed will gush outthe mats may be piled one upon another in the press and subjected to the necessary pressure 7 5 without danger of breaking, as in cast mats, being pressed out of shape, as in brass mats, bursting or being forced to one side out of pressure,'as in hair or leather mats, or splitting, as in wooden mats.

Our improved mats may be used over and over again. In minutia of details modifications may be made without departing from the principle or sacrificing the advantages of our invention, the essential features of which com- 8 5 prise the wrought-metal plates having the tough, flexible borders securely riveted theretoas, for instance, instead of leather we may use fibrous paper, vulcanized fiber, or cloth. The plates also may be of steel not cast, so 0 that it may have an inherent spring-power.

Having thus described our invention, what we claim is- 1. A mat for hydraulic oil-presses, consisting of two wroughtmet-al plates having bor 5 ders of leather or the like securely riveted to the edges thereof, and hinged together, substantially as described.

The border for the rear ends of the 55 2. The mat for hydraulic oil-presses herein In testimony whereof we have hereunto set described, consisting of the two wrought-metal our hands and seals in the presence of two sub- IO plates A, having the borders 13, secured firmly scribing witnesses.

thereto by rivets I), and the leather piece 0, JOHN D. MILBURN. s] 5 forming the borders for the hinge ends and 1 RICHARD G. LATTING, JR. [L s] the hinge for the mat, and the strap handle a, \Vitncsses:

secured to the leather piece 0, substantially as HUNsDoN CARY,

described. \VILLIAM HAYNE HALL. 

